A Micro-flow Phantom for Superficial Micro-vasculature Imaging

A. Bhatti, T. Ishii, Y. Saijo

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


Visualization of cutaneous micro-vasculatures is a powerful approach assisting in the diagnosis of skin vascular disorders. These minute structures can be visualized by high-frequency ultrasound (HFUS) using ultrafast Doppler imaging. Ultrasound flow phantoms have been used as assessment tools to evaluate the performance of the ultrasound imaging system, however, to optimize the imaging system for visualization of micro-structures, flow phantom with micro-channels is required which are usually difficult to fabricate. Here, we design a simple approach for micro-flow phantom which is easy to fabricate and cast for detection of microcirculation in superficial micro-structures. The proposed approach features (i) the micro-channels of 200-micron at the depth of 4 mm (ii) casted in the cryogel mixture of Poly-vinyl alcohol (PVA) and (iii) infused at flow speed of 30 mm/s using infusion pump. Visualization of micro-flow channel in power Doppler image obtained by HFUS ultrafast Doppler imaging reveals that the proposed micro-flow phantom could serve as a viable assessment tool for optimizing the system for in-vivo cutaneous micro-vasculature imaging.

Original languageEnglish
Article number012054
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2021 Nov 25
Event2021 International Conference on Biomedical Engineering, ICoBE 2021 - Virtual, Online, Malaysia
Duration: 2021 Sept 142021 Sept 15


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